Isospin splittings in baryons with two heavy quarks

被引：23

作者：

Karliner, Marek ^{[1
]}

Rosner, Jonathan L. ^{[2
,3
]}

机构：

[1] Tel Aviv Univ, Sch Phys & Astron, Raymond & Beverly Sackler Fac Exact Sci, IL-69978 Tel Aviv, Israel

[2] Univ Chicago, Enrico Fermi Inst, 5620 South Ellis Ave, Chicago, IL 60637 USA

[3] Univ Chicago, Dept Phys, 5620 South Ellis Ave, Chicago, IL 60637 USA

来源：

PHYSICAL REVIEW D | 2017年 / 96卷 / 03期

关键词：

CHARMED BARYONS; MASS; HADRONS; DECAYS; MODEL;

D O I：

10.1103/PhysRevD.96.033004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Isospin splittings in baryons with two heavy quarks and a u or d quark are calculated using simple methods proposed previously by the authors. The results are M(Xi(++)(cc)) - M(Xi(+)(cc)) = 1.41 +/- 0.12(+0.76) MeV, M(Xi(0)(bb)) - M(Xi(-)(bb)) = -4.78 +/- 0.06(+0.03) MeV, and M(Xi(+)(bc)) - M(Xi(0)(bc)) = -1.69 +/- 0.07(+0.39) MeV,where the statistical errors reflect uncertainties in input mass splittings, and the systematic errors are associated with the choice of constituent-quark masses.

引用

页数：4

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